Logging-bunk.



H. M. MCCORMACK & G. H. WALL.

LOGGING BUNK.

APPLICATION FILED 00124. 1913.

1,098,580, Patented June 2, 1914.

lltlllllh@ STATES `FAUTEhlflif lALR-'BJY M. MCCORMACK ANI) GEORGE H. WALL Dl? SGGILQ., CLIFRNA.

LOGGING-BUNK.

tenesse.

To all w71 ont it may concern i it known that we, HARRY M. MoGon` amen, and (licencia- H. Vlam, citizens ot the i, residing at Scotia, in the county oit" Humboldt, State et California, have invented certain nenr and Useful linprcveinents in Log fing-hunks; and We do hereby declare the following to be a vfull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the saine. p

rllhe present invention is directcdto in1- proveniente in logging bunks, and has for its object to provide devices of this character Yfor use upon railway cars so constructed that the ezine may be easily released for dumping; the logs.

A. further object of the invention is to so construct devices ott this character that when the chock plates are released the saine Will tall upon the car.

llllith these and other objects in view, this invention resides in the novel features ot construction, formation, combination and arrangement of parts to be hereinafter more 'fully described, claimed and illustrated in the accon'manying drawing, in Which:-

lligure l is a fragmentary plan View of a car equipped with bunks. Fig. 2 is a sectional `view on line 2*?1 of llig. l. Fig 3 is a similar view on line 3 3 ot Fig. l. Fig. t is a view similar to Fig. 1, showing the chock blocks released. llig. 5 is a detail perspective vieiv of one ot' the chock plates. Fig. 6 is a similar vieiv of a modified torni oit chock plate, the same being used preterm bly in connection with the innermost bunks.

Referring to the drawing, the numeral l designates the bottom of a logging car having` bolted transversely thereof ties 2, upon the upper surface oi which are bolted rails 3, said rails being;l held in spaced relation by blocks and 5, the blocks 5 being arranged intermediate the ends of the rails 3. Pass in?,` through the rails 3 and blocks 5 are bolts 6, the eyes 'l' oit which are disposed upon opposite sides of the rails 3, similar bolts 8 being passed in opposite directions through the blocks 4:. rlhe eyes 9 of the bolts 8 are provided with sleeves 10, the purpose ot which Will appear later.

The check plates il are formed from steel and comprise inclined inner and outer Walls .l2 and i3, respectively, the Walls 1Q having their lower cdgjes provided. with ears lli Specification of Letters Patent.

Application filed ctober 1, 1913.

Patented Sinne 2, 1914.

Serial No. 793,43.

which are adapted to engage between the rails 3. rllhe lower edges oit the Walls 13 of the chock plates are lprovided with spaced cars 1.5 "which are designated to engage the outer edges ot the rail heads. A

i ured lo the corners oit the walls 12 are the inner ends ot the chains 1G, said chains being passed. through the eyes 7 ot the bolts o and through the sleeves l0 carried by the eyes oit' the bolts 8, the links oil said chains being engaged by the hooks 17 which are flexibly connected to the ends oit' the ties 2, said hooks serving' to hold the chock plates in adjusted positions.

The chock plates 1S operate in the saine manner as the chock plates il, but have their outer Walls ll) iirovided with tongues 2() and their inner Walls 2l. provided with tongues 22 which are designed to engage between the rails 3. rllhe outer ends ot the chains 16 are provided with rings 23, nf'hich serve to prevent disengagement ot the saine from the sleeves l0, whereby when the load is released the chock pl etes will :tall from the rails El on the bottoni oiE the car, as shown in Fig'. e. Similarly connected chains are provided tor the chock plates 'i8 and operate in the same manner as the chains 1G. rlhe eye bolts (3 and 8 not only serve as means for retaining` the chains in their proper positions, but aid in strengthening the rails 3. lily connectingi the chains to the corners of the choclr plates and securing the saine to the hooks l?, the Weight of the logs upon the plates Will tend to swing` the saine laterally, thus causing' the ears ot the plates to binding'ly engage the rails 5, and by so doing relieves the strain upon the chains so that the likelihood ot the saine breaking is eliminated.

Frein the foregoing description it will be seen that a logging bnnlr has been provided, Which is exceedingly simple in construction, and one which can be easily and quickly applied to the conventional 'torni ot logging car.

lli/hat is claimed is l. llhe combination with a. bunk provided with spaced rails, oit chocl: plates connpris` ing inclined Walls, ea carried by the lower edges ot the Walls, and means connected to the corners of certain ot the Walls to swing the chock plates laterally when Weight is applied thereon 'to cause the ears to bind-A ingly engafe the rails.

bination 'with s. h inirovided ilo with spaced fails, of chock plates compristhe plates laterally to cause the ears to bind- 10 ing inclined inner and outer Walls, ears caringly engage the sides of the rails.

ried by the lower central edges of the Walls In testimony whereof, We aflix our signafor engaging the sides of the rails, chains tures in the presence of two Witnesses.

'l having their inner ends connected to the HARRY Bl. h/ICCORMACK.

corners of the inner Walls, of the plates7 GEORGE H. VALL. means for attaching the outer ends of the lVitnesses: chains to the bunks, whereby said chains P. E. GARLAND, serve in conjunction with the load to swing CHARLES FRANVGEE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Eatents`v Washington, D. C. 

